Choose the correct option. Statement I: Preservatives are added to prevent the growth of microorganisms. Statement II: Antibiotics kill or stop the growth of pathogens.
Suggest a suitable word for each of the following statements.
(a) Chemicals added to food to prevent the growth of microorganisms.
(b) Nitrogen-fixing microorganisms present in the root nodules of legumes.
(c) The agent spreads pathogens from one place to another.
(d) Chemicals which kill or stop the growth of pathogens.
Question 9 Suggest a suitable word for each of the following statements.
Assertion – Pathogens are harmful to mankind.Reason – They either kill or prevent the growth of microorganisms.